Japanese adult satellite network ERO24TV is currently donating money to an AIDS awareness charity based on how long you can keep your eyes closed in front of your monitor—they’re not going to make it easy though!

When you’re ill or your life is in danger, it’s natural to feel gratitude towards those who aided your recovery or saved your life. But what do you do to show your gratitude?

One elderly woman from Nara Prefecture, Japan, felt so grateful to the ambulances who often help her, that she decided to donate a brand new ambulance to her local fire station. And it wasn’t just any ambulance – this was a top-of-the-line model worth 2.7 million yen (over US$22,000)!

What if you found an unmarked envelope full of money in your mailbox? Would you keep it?

On March 20 and 21, exactly 30 households were faced with this very dilemma as an unknown person deposited a total of 760,000 yen (US$7,420) in the mailboxes of an apartment complex in Ikoma City, Nara Prefecture. The largest sum found in a single mailbox was 137,000 yen (US$1,339). Just 10 days earlier, mysterious envelopes were deposited at an additional 30 homes in Kawasaki City, 486 km (300 mi) away. This time, the envelopes contained gift certificates with monetary values ranging from 5,000 yen (US$48) to tens of thousands of yen (hundreds of US dollars).

If this sounds like easy money to you, you might be surprised to learn what half of the residents chose to do with the cash.

Although it has been more than two and a half years since the devastating earthquake and tsunami struck northeastern Japan, much of the area is still in need of disaster aid for the recovery efforts. But before you look around your house for items to donate, take a look at what volunteer groups, local governments and aid recipients themselves would rather you keep at home. And you might be very surprised to what else Twitter users have deemed the most “unnecessary things at a disaster zone.”

On 8 March 2013, in the second round of the World Baseball Classic, Japan beat Taiwan 4-3. It was a close-fought game, but the real hot topic on the day was the large number of Japanese spectators holding up handmade signs to express their gratitude to Taiwan for humanitarian aid given in response to the catastrophic March 11, 2011 Tōhoku earthquake and tsunami, which devastated northeastern Japan.

The gesture was organized beforehand through social media. Japanese fans reasoned that “a lot of Taiwanese people will be watching the game,” and so it would be a great opportunity to get the message across by showing simple words of gratitude on placards, broadcast on Taiwanese TV.

On Christma Day, 2010, an anonymous donor left ten 30,000 yen ($360) randoseru backpacks outside a Japanese orphanage in Gunma Prefecture. Attached to the bags was a card signed by Naoto Date, the secret identity of fictional Japanese wrestler Tiger Mask, who, in the popular 1960s manga by the same name, fought for orphans after being raised in an orphanage himself.

The story was picked up by the press and a week later, on January 1, 2011, a similar donation of backpacks was left at an orphanage in Kangawa Prefecture, again with a note signed by Naoto Date. By January 11, over 100 “Tiger Mask” donations, ranging from backpacks to toys, food, and monetary gifts, had been reported at various children’s facilities across the country.

After that, little was heard from Tiger Mask, aside a second donation to the original orphanage in Gunma on Christmas Day, 2011, which failed to inspire a wave of charity as it had the previous year.

At around 2:30 pm on December 8, a female staff member at an orphanage in Takaoka city noticed a man pulling up in a white vehicle and placing three large boxes, two styrofoam and one cardboard, at the base of a telephone pole near the entrance. The man, who seemed to be in his 30s, beckoned the staff member over with his hand and, without saying anything, left the boxes and drove off.

In the cardboard box were five daikon, or Japanese radishes. In the styrofoam boxes were two large, plump yellowtail, accompanied by a letter that read: “The men of the ocean have braved billowing waves, putting their lives on the line for these kan-buri (winter yellowtail).” The letter was signed: “Yours truly A Man Who Loves the Ocean”.

At first, vegetables and fish may seem like a rather strange combination to leave outside an orphanage, but the man had actually gifted the children with a luxurious winter feast: winter yellowtail are a major seasonal delicacy that normally sell for anywhere between 30-40,000 yen ($350-$480) a fish.

Here’s a news story that managed to warm even our cynical, Internet-jaded hearts to the core.

A man going by the name of Colonel Muska, the nefarious villain from Studio Ghibli’s Castle in the Sky, has made a surprise donation to an orphanage in Tokushima city on the island of Shikoku, Japan.

The mysterious stranger left a pile of expensive leather school backpacks as well as a copy of the Ghibli feature film on DVD outside the orphanage, along with a letter simply saying “Please think of this as an early Christmas present. Yours, Colonel Muska”

Who doesn’t love a Twitter war? This wonderful modern age we live in lets celebrities make snide comments to and about each other as we all read along. And with the unprecedented interactivity social networks you too could be arguing with Ashton Kutcher about something!

Last week mobile phone mogul Masayoshi Son, who has a history of large donations, offered US$500,000 through Softbank to help the victims of Hurricane Sandy in North America and then tweeted about it. This act of philanthropy irked a twitter user by the name of o44o. Feeling that this was an act of blatant advertising through the use of a good deed he decided to voice his opinion to Mr. Son.

Low turn-out for blood donation is a chronic problem in nearly every country. It seems that people generally don’t like being stabbed and having a machine suck out their blood. On top of that, some countries, such as China a couple decades back have had scandals involving reused equipment and tainted blood that all but shattered the public faith in blood collecting authorities.

These bleak circumstances look like a job for the Blood Buddies: a group of strapping young Chinese men and women who don superhero tights which also illustrate their circulatory systems for all to see!